It was Hanji's birthday, she said she wanted to keep it small. But ended inviting everyone in the recon corps, that are almost 300 people. It looked more like a festival. Because people still didn't trust Eren, Levi wanted to keep him close. Levi got into a fight and Eren made a deal. Now Levi has to deal with a drunken Eren. But the awkwardness for that morning was still there.